<template>
	<view>
		<!-- 导航栏 -->
		<free-nav-bar :title="detail.name" :noreadnum="totalNoreadnum" showBack>
			<free-icon-button slot="right" 
			:icon="'\ue6fd'"
			@click="openChatSet"></free-icon-button>
		</free-nav-bar>
		
		<!-- 聊天内容区域 -->
		<scroll-view scroll-y class="bg-light position-fixed left-0 right-0 px-3" style="bottom: 105rpx;box-sizing: border-box;" :style="chatBodyBottom" :show-scrollbar="false" :scroll-into-view="scrollIntoView" :scroll-with-animation="true"
		@click="clickPage">
			
			<!-- 聊天信息列表组件 -->
			<view v-for="(item,index) in list" :key="index" 
			:id="'chatItem_'+index">
				<free-chat-item :item="item" :index="index" ref="chatItem"
				:pretime=" index > 0 ? list[index-1].create_time : 0"
				@long="long" @preview="previewImage" 
				:shownickname="currentChatItem.shownickname"
				></free-chat-item>
			</view>
			
		</scroll-view>
		
		<!-- #ifdef APP-PLUS-NVUE -->
		<div v-if="mode === 'action' || mode === 'emoticon'"
		class="position-fixed top-0 right-0 left-0"
		:style="'bottom:'+maskBottom+'px;'"
		@click="clickPage"></div>
		<!-- #endif -->
		
		<!-- 底部输入框 -->
		<view class="position-fixed left-0 right-0 border-top flex align-center" style="background-color: #F7F7F6;height: 105rpx;" 
		:style="'bottom:'+KeyboardHeight+'px;'">
			<free-icon-button v-if="mode === 'audio'" :icon="'\ue607'" @click="changeVoiceOrText"></free-icon-button>
			<free-icon-button v-else :icon="'\ue606'" @click="changeVoiceOrText"></free-icon-button>
			<view class="flex-1">
				<view v-if="mode === 'audio'" class="rounded flex align-center justify-center" style="height: 80rpx;" :class="isRecording?'bg-hover-light':'bg-white'" @touchstart="voiceTouchStart" @touchend="voiceTouchEnd" @touchcancel="voiceTouchCancel" @touchmove="voiceTouchMove">
					<text class="font">{{isRecording ? '松开 结束':'按住 说话'}}</text>
				</view>
				
				<textarea v-else fixed class="bg-white rounded p-2 font-md" style="height: 50rpx;max-width: 450rpx;" :adjust-position="false" v-model="text" @focus="mode = 'text'"/>
			</view>
			<!-- 表情 -->
			<free-icon-button :icon="'\ue605'"
			@click="openActionOrEmoticon('emoticon')"></free-icon-button>
			<template v-if="text.length === 0">
				<!-- 扩展菜单 -->
				<free-icon-button :icon="'\ue603'" 
				@click="openActionOrEmoticon('action')"></free-icon-button>
			</template>
			<view v-else class="flex-shrink">
				<!-- 发送按钮 -->
				<free-main-button name="发送" 
				@click="send('text')"></free-main-button>
			</view>
			
		</view>
	
	<!-- 扩展菜单 -->
	<free-popup ref="action" bottom transformOrigin="center bottom" @hide="KeyboardHeight = 0" :mask="false">
		<view style="height: 580rpx;" class="border-top border-light-secondary bg-light">
			<swiper :indicator-dots="emoticonOrActionList.length > 1" style="height: 510rpx;">
				<swiper-item class="row" 
				v-for="(item,index) in emoticonOrActionList"
				:key="index">
					<view class="col-3 flex flex-column align-center justify-center" style="height: 255rpx;" v-for="(item2,index2) in item" :key="index2" @click="actionEvent(item2)">
						<image :src="item2.icon" mode="widthFix"
						style="width: 100rpx;height: 100rpx;"></image>
						<text class="font-sm text-muted mt-2"
						>{{item2.name}}</text>
					</view>
				</swiper-item>
			</swiper>
		</view>
	</free-popup>
	
	
	<!-- 弹出层 -->
	<free-popup ref="extend" :bodyWidth="240" :bodyHeight="450" :tabbarHeight="105">
		<view class="flex flex-column" 
		style="width: 240rpx;"
		:style="getMenusStyle">
			<view class="flex-1 flex align-center" 
			hover-class="bg-light"
			v-for="(item,index) in menusList"
			:key="index"
			@click="clickEvent(item.event)">
				<text class="font-md pl-3">{{item.name}}</text>
			</view>
		</view>
	</free-popup>
	
	
	<!-- 录音提示 -->
	<view v-if="isRecording" class="position-fixed top-0 left-0 right-0 flex align-center justify-center" style="bottom: 105rpx;">
		<view style="width: 360rpx;height: 360rpx;background-color: rgba(0,0,0,0.5);" class="rounded flex flex-column align-center justify-center">
			<image src="/static/audio/recording.gif" style="width: 150rpx;height: 150rpx;"></image>
			<text class="font text-white mt-3">{{unRecord ? '松开手指，取消发送':'手指上滑，取消发送'}}</text>
		</view>
	</view>
	
	</view>
</template>

<script>
	// #ifdef APP-PLUS-NVUE
	const dom = weex.requireModule('dom')
	// #endif
	
	import freeNavBar from "@/components/free-ui/free-nav-bar.vue"
	import freeIconButton from "@/components/free-ui/free-icon-button.vue"
	import freeChatItem from '@/components/free-ui/free-chat-item.vue';
	import freePopup from "@/components/free-ui/free-popup.vue"
	import freeMainButton from '@/components/free-ui/free-main-button.vue';
	
	
	import { mapState,mapMutations } from 'vuex'
	
	import auth from '@/common/mixin/auth.js';
	import $U from '@/common/free-lib/util.js';
	import $H from '@/common/free-lib/request.js';
	import $C from '@/common/free-lib/config.js';
	export default {
		mixins:[auth],
		components: {
			freeNavBar,
			freeIconButton,
			freeChatItem,
			freePopup,
			freeMainButton
		},
		data() {
			return {
				scrollIntoView:"",
				// 模式 text输入文字，emoticon表情，action操作，audio音频
				mode:"text",
				// 扩展菜单列表
				actionList:[
					[{
						name:"相册",
						icon:"/static/images/extends/pic.png",
						event:"uploadImage"
					},{
						name:"拍摄",
						icon:"/static/images/extends/video.png",
						event:"uploadVideo"
					},{
						name:"收藏",
						icon:"/static/images/extends/shoucan.png",
						event:"openFava"
					},{
						name:"名片",
						icon:"/static/images/extends/man.png",
						event:"sendCard"
					},{
						name:"语音通话",
						icon:"/static/images/extends/phone.png",
						event:""
					},{
						name:"位置",
						icon:"/static/images/extends/path.png",
						event:""
					}]
				],
				emoticonList:[],
				// 键盘高度
				KeyboardHeight:0,
				menusList:[],
				navBarHeight:0,
				list:[],
				// 当前操作的气泡索引
				propIndex:-1,
				// 输入文字
				text:"",
				
				// 音频录制状态
				isRecording:false,
				RecordingStartY:0,
				// 取消录音
				unRecord:false,
				
				detail:{
					id:0,
					name:"",
					avatar:"",
					chat_type:"user"
				}
			}
		},
		mounted() {
			var statusBarHeight = 0
			// #ifdef APP-PLUS-NVUE
			statusBarHeight = plus.navigator.getStatusbarHeight()
			// #endif
			this.navBarHeight = statusBarHeight + uni.upx2px(90)
			
			// 监听键盘高度变化
			uni.onKeyboardHeightChange(res => {
			  if (this.mode !== 'action' && this.mode !== 'emoticon') {
			  	this.KeyboardHeight = res.height 
			  }
			  if (this.KeyboardHeight > 0) {
			  	this.pageToBottom()
			  }
			})
			
			
			// 注册发送音频事件
			this.regSendVoiceEvent((url)=>{
				if (!this.unRecord) {
					this.send('audio',url,{
						time:this.RecordTime
					})
				}
			})
			
			this.pageToBottom()
		},
		computed: {
			...mapState({
				chatList:state=>state.user.chatList,
				RECORD:state=>state.audio.RECORD,
				RecordTime:state=>state.audio.RecordTime,
				chat:state=>state.user.chat,
				totalNoreadnum:state=>state.user.totalNoreadnum,
				user:state=>state.user.user
			}),
			// 当前会话配置信息
			currentChatItem(){
				let index = this.chatList.findIndex(item=>item.id === this.detail.id && item.chat_type === this.detail.chat_type)
				if(index !== -1){
					return this.chatList[index]
				}
				return {}
			},
			// 获取蒙版的位置
			maskBottom(){
				return this.KeyboardHeight + uni.upx2px(105)
			},
			// 动态获取菜单高度
			getMenusHeight(){
				let H = 100
				return this.menusList.length * H
			},
			// 获取菜单的样式
			getMenusStyle(){
				return `height: ${this.getMenusHeight}rpx;`
			},
			// 判断是否操作本人信息
			isdoSelf(){
				// 获取本人id（假设拿到了）
				let id = 1
				let user_id = this.propIndex > -1 ? this.list[this.propIndex].user_id : 0
				return user_id === id
			},
			// 聊天区域bottom
			chatBodyBottom(){
				return `bottom:${uni.upx2px(105) + this.KeyboardHeight}px;top:${this.navBarHeight}px;`
			},
			// 获取操作或者表情列表
			emoticonOrActionList(){
				return (this.mode === 'emoticon' || this.mode === 'action') ? this[this.mode+'List'] : []
			},
			// 所有信息的图片地址
			imageList(){
				let arr = []
				this.list.forEach((item)=>{
					if (item.type === 'emoticon' || item.type === 'image') {
						arr.push(item.data)
					}
				})
				return arr
			}
		},
		watch: {
			mode(newValue, oldValue) {
				if (newValue !== 'action' && newValue !== 'emoticon') {
					this.$refs.action.hide()
				}
				if (newValue !== 'text') {
					uni.hideKeyboard()
				}
			}
		},
		onLoad(e) {
			// if(!e.params){
			// 	return this.backToast()
			// }
			e.params = {
				chat_type: 0,
				id: 0,
				name: 'xxxx',
				avatar: ''
			}
			// this.detail = JSON.parse(decodeURIComponent(e.params))
			this.detail = e.params
			console.log(this.detail);
			// 初始化
			this.__init()
			// 创建聊天对象
			this.chat.createChatObject(this.detail)
			// 获取历史记录
			this.list = this.chat.getChatDetail()
			// 监听接收聊天信息
			uni.$on('onMessage',this.onMessage)
			
			uni.$on('updateHistory',this.updateHistory)
			
			// 监听发送收藏和名片
			uni.$on('sendItem',this.onSendItem)
		},
		destroyed() {
			// 销毁聊天对象
			this.chat && this.chat.destoryChatObject()
			// 销毁监听接收聊天消息
			uni.$off('onMessage',this.onMessage)
			
			uni.$off('updateHistory',this.updateHistory)
			
			uni.$off('sendItem',this.onSendItem)
		},
		methods: {
			...mapMutations(['regSendVoiceEvent']),
			onSendItem(e){
				if(e.sendType === 'fava' || e.sendType === 'card'){
					this.send(e.type,e.data,e.options)
				}
			},
			updateHistory(isclear = true){
				if(isclear){
					this.list = []
				} else {
					this.list = this.chat.getChatDetail()
				}
			},
			onMessage(message){
				console.log('[聊天页] 监听接收聊天信息',message);
				if((message.from_id === this.detail.id && message.chat_type === 'user') || (message.chat_type === 'group' && message.to_id === this.detail.id)){
					if(message.isremove !== 1){
						this.list.push(message)
						// 置于底部
						return this.pageToBottom()
					}
					// 撤回消息
					let index = this.list.findIndex(item=>item.id === message.id)
					if(index !== -1){
						this.list[index].isremove = 1
					}
				}
			},
			__init(){
				var total = 20
				var page = Math.ceil(total/8)
				var arr = []
				for (var i = 0; i < page; i++) {
					var start = i*8
					arr[i] = []
					for (var j = 0; j < 8; j++) {
						var no = start + j
						if ((no+1) > total) {
							continue;
						}
						arr[i].push({
							name:"表情"+no,
							icon: $C.emoticonUrl + no +'.gif',
							event:"sendEmoticon"
						})
					}
				}
				this.emoticonList = arr
				console.log(this.chat, 6666)
				// 初始化会话列表
				this.chat && this.chat.initChatListItem({
					chat_type:this.detail.chat_type,
					to_id:this.detail.id,
					to_name:this.detail.name,
					to_avatar:this.detail.avatar,
					data:this.detail.chat_type === 'user' ? '你们已经是好友，可以开始聊天了' : '你已经加入群聊，可以开始聊天了'
				})
			},
			// 打开扩展菜单或者表情包
			openActionOrEmoticon(mode = 'action'){
				this.mode = mode
				this.$refs.action.show()
				
				uni.hideKeyboard()
				this.KeyboardHeight = uni.upx2px(580)
			},
			// 发送
			send(type, data = '',options = {}){
				// 组织数据格式
				switch (type){
					case 'text':
					data = data || this.text
						break;
				}
				let message = this.chat.formatSendData({
					type,
					data,
					options
				})
				// 渲染到页面
				let index = this.list.length
				this.list.push(message)
				// 监听上传进度
				let onProgress = false
				if(message.type !== 'text' && message.type !== 'emoticon' && message.type !== 'card' && !message.data.startsWith('http')){
					onProgress = (progress)=>{
						console.log('上传进度：',progress);
					}
				}
				// 发送到服务端
				this.chat.send(message,onProgress).then(res=>{
					console.log(res);
					// 发送成功
					this.list[index].id = res.id
					this.list[index].sendStatus = 'success'
				}).catch(err=>{
					// 发送失败
					this.list[index].sendStatus = 'fail'
					console.log(err);
				})
				// 发送文字成功，清空输入框
				if (type === 'text') {
					this.text = ''
				}
				// 置于底部
				this.pageToBottom()
			},
			// 回到底部
			pageToBottom(){
				// #ifdef APP-PLUS-NVUE
				let chatItem = this.$refs.chatItem
				let lastIndex = chatItem.length > 0 ? chatItem.length - 1 : 0
				if (chatItem[lastIndex]) {
					dom.scrollToElement(chatItem[lastIndex],{})
				}
				// #endif
				// #ifndef APP-NVUE
				setTimeout(()=>{
					let lastIndex = this.list.length - 1
					this.scrollIntoView = 'chatItem_'+lastIndex
				},300)
				// #endif
			},
			// 长按消息气泡
			long({x,y,index}){
				// 初始化 索引
				this.propIndex = index
				// 组装菜单
				let menus = [{ 
					name:"发送给朋友",
					event:'sendToChatItem'
				},{ 
					name:"收藏",
					event:'fava'
				},{ 
					name:"删除",
					event:'delete'
				}]
				let item = this.list[this.propIndex]
				let isSelf = this.user.id === item.from_id
				if(isSelf){
					menus.push({
						name:"撤回",
						event:'removeChatItem'
					})
				}
				// #ifndef H5
				if(item.type === 'text'){
					menus.unshift({
						name:"复制",
						event:'copy',
					})
				}
				// #endif
				this.menusList = menus
				// 显示扩展菜单
				this.$refs.extend.show(x,y)
			},
			// 操作菜单方法分发
			clickEvent(event){
				let item = this.list[this.propIndex]
				let isSelf = this.user.id === item.from_id
				switch (event){
					case 'removeChatItem': // 撤回消息
					// 拿到当前被操作的信息
					this.chat.recall(item).then(res=>{
						item.isremove = 1
					})
						break;
					case 'sendToChatItem':
					uni.navigateTo({
						url: '../chat-list/chat-list?params='+encodeURIComponent(JSON.stringify(item)),
					});
						break;
					case 'copy': // 复制
					uni.setClipboardData({
					    data: item.data,
					    success: ()=> {
							uni.showToast({
								title: '复制成功',
								icon: 'none'
							});
					    }
					});
						break;
					case 'delete':
					uni.showModal({
						content: '是否要删除该记录？',
						success: (res)=> {
							if (!res.confirm) return;
							this.chat.deleteChatDetailItem(item,isSelf)
							this.list.splice(this.propIndex,1)
							// 删除最后一条消息
							if(this.list.length === this.propIndex){
								this.chat.updateChatItem({
									id:this.detail.id,
									chat_type:this.detail.chat_type
								},(v)=>{
									let o = this.list[this.propIndex - 1]
									let data = ''
									if(o){
										data = this.chat.formatChatItemData(o,isSelf)
									}
									v.data = data
									return v
								})
							}
						}
					});
						break;
					case 'fava': // 加入收藏
					uni.showModal({
						content: '是否要加入收藏？',
						success: (res)=> {
							if (res.confirm) {
								$H.post('/fava/create',{
									type:item.type,
									data:item.data,
									options:JSON.stringify(item.options)
								}).then(res=>{
									uni.showToast({
										title: '加入收藏成功',
										icon: 'none'
									});
								})
							}
						}
					});
						break;
				}
				// 关闭菜单
				this.$refs.extend.hide()
			},
			// 扩展菜单
			actionEvent(e){
				switch (e.event){
					case 'uploadImage': // 选择相册
					uni.chooseImage({
						count:9,
						success: (res) => {
							// 发送到服务器
							// 渲染到页面
							res.tempFilePaths.forEach((item)=>{
								this.send('image',item)
							})
						}
					})
						break;
					case 'uploadVideo': // 发送短视频
					uni.chooseVideo({
						maxDuration:10,
						success:(res)=>{
							this.send('video',res.tempFilePath)
							// 渲染页面
							// 发送到服务端（获取视频封面，返回url）
							// 修改本地的发送状态
						}
					})
						break;
					case 'sendEmoticon': // 发送表情包
					this.send('emoticon',e.icon)
						break;
					case 'openFava': // 发送收藏
					uni.navigateTo({
						url: '../../my/fava/fava?type=send',
					});
						break;
					case 'sendCard': // 发送名片
					uni.navigateTo({
						url: '',
					});
						break;
				}
			},
			// 点击页面
			clickPage(){
				this.mode = ''
			},
			// 预览图片
			previewImage(url){
				uni.previewImage({
					current:url,
					urls:this.imageList,
					indicator:"default"
				})
			},
			// 切换音频录制和文本输入
			changeVoiceOrText(){
				this.mode = this.mode !== 'audio' ? 'audio' : 'text'
			},
			// 录音相关
			// 录音开始
			voiceTouchStart(e){ 
				// 初始化
				this.isRecording = true
				this.RecordingStartY = e.changedTouches[0].screenY
				this.unRecord = false
				// 开始录音
				this.RECORD.start({
					format:"mp3"
				})
			},
			// 录音结束
			voiceTouchEnd(){
				this.isRecording = false
				// 停止录音
				this.RECORD.stop()
			},
			// 录音被打断
			voiceTouchCancel(){
				this.isRecording = false
				this.unRecord = true
				// 停止录音
				this.RECORD.stop()
			},
			voiceTouchMove(e){
				let Y = Math.abs(e.changedTouches[0].screenY - this.RecordingStartY)
				this.unRecord = (Y >= 50)
			},
			// 打开聊天信息设置
			openChatSet(){
				uni.navigateTo({
					url: '../chat-set/chat-set?params='+JSON.stringify({
						id:this.detail.id,
						chat_type:this.detail.chat_type
					}),
				});
			}
		}
	}
</script>

<style>

</style>
